Home / 79,128,002.80-118,692,004.20-53,299,970.20

Finding the Fourth Proportional to 79,128,002.80, 118,692,004.20 and 53,299,970.20

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Solution

The fourth proportional to 79,128,002.80, 118,692,004.20 and 53,299,970.20 is: 79,949,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,128,002.80 : 118,692,004.20 = 53,299,970.20 : x
  2. Step 2: Convert to fraction form
    79,128,002.80/118,692,004.20 = 53,299,970.20/x
  3. Step 3: Cross multiply
    79,128,002.80x = 118,692,004.20 × 53,299,970.20
  4. Step 4: Simplify right side
    79,128,002.80x = 6,326,280,286,838,275
  5. Step 5: Solve for x
    x = 6,326,280,286,838,275/79,128,002.80
  6. Step 6: Final answer
    x = 79,949,955.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.